42-371-36266

Final Completion

MILLAR L. H. ETAL

PECOS County · District 8 · OLSEN ENERGY INC. · WENTZ (WICHITA-ALBANY)

Permits

Max Depth

4,500 ft

First Permit

1990-08-23

Latest Activity

2014-09-26

Lifespan

24 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1990-10-26

Shut-In

—

Plugged

2023-06-06

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

CHEVRON U. S. A. INC. 1993-1999→ BELCO ENERGY CORP. 1999-2002→ WESTPORT OIL AND GAS COMPANY, LP 2002-2006→ KERR-MCGEE OIL & GAS ONSHORE LP 2006-2006→ OLSEN ENERGY INC. 2007-2019

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 2,516 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
TANSILL	700 ft	+1,816 ft
YATES	753 ft	+1,763 ft
7 RIVERS (Seven Rivers)	845 ft	+1,671 ft
QUEEN	1,263 ft	+1,253 ft
SAN ANDRES	1,560 ft	+956 ft
DOLOMITE	2,080 ft	+436 ft
CLEARFORK (Clear Fork)	2,133 ft	+383 ft
DOLOMITE	2,136 ft	+380 ft
TUBB	2,820 ft	-304 ft
DOLOMITE	3,170 ft	-654 ft

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Perforations (3)

Interval	Type
1,566–1,612 ft	Perforated
3,849–3,904 ft	Perforated
3,973–4,154 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	650 ft	420 sx
5.5"	4,260 ft	1,335 sx

Permit History (2)

#796204 Recompletion Final Completion

MILLAR, L.H. ETAL · 1,903 ft

2014-09-26

Spud 2014-09-15

#376886 Drill Final Completion

MILLAR, L. H. ET AL · 4,500 ft

1990-08-23

Spud 1990-08-13

Applications (2)

#796204 A OLSEN ENERGY INC.

received 2014-09-12

#376886 A CHEVRON U. S. A. INC.

received 1990-08-21

Records & Logs

3 completion filings on record · 2 with log images at RRC.

W-2/G-1 2014-09-29 log on file

W-2/G-1 1990-11-28 log on file

W-2/G-1 1991-02-04

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in PECOS County.

Well Details

Well Number: 20
Max Depth: 4,500 ft
Drill Type: Vertical
County: PECOS
District: 8
Operator: OLSEN ENERGY INC.
Completed: 1990-10-26

Operator

Name: OLSEN ENGY INC
Location: BOERNE
P-5 Status: X (filed 2026-05-26)
Cum Oil (all leases): 4,690,558 bbl
Cum Gas (all leases): 40,548,531 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 243